Eyeglasses



A; V. BROWN.

EYEGLASSES.

APPLICATION FILED NOV. 2. Iss8.

1 ,329, 885 Patented Feb. 3, 1920.

ATTORNEY UNITED STATES PATENT OFFICE.

EYEGLASSES.

Specification of Letters Patent.

Patented Feb. 3, 1920.

Application filed November 2, 1918. Serial No. 260,804.

To all whom it may concern.-

Be it known that I, ANDREW V. BROWN, a citizen of the United States, anda resident of Philadelphia, in the county of Philadcl phia and State ofPennsylvania, have invented an Improvement in Eyeglasses, of which thefollowing is a specification.

In the manufacture of eyeglasses and spectacles manufacturers, andOpticians have suffered considerable loss and expense due to the factthat in fitting the straps to the lenses the latter are subjected tocertain stresses or strains or blows as a result of which they arebroken and must be replaced.

It is the object of my invention to pro vide means to avoid andeliminate 'such breakage thereby eliminating the wastage and lossresulting therefrom. In accom- PllSlllllg this object, I provide theportions of the lenses with which the strap and the screw for connectingthe same to the said lens would contact with a coating of metal orequivalent material which receives and resists the strains and blowswhich otherwise would be received by and imposed upon the lens itself. Imay also provide a thin coating of metal entirely around the peripheraledge of the lens thereby decreasing the likelihood of breakage of thelens if it should be dropped or otherwise receive a blow from which itmight be broken but for the presonce of such peripheral coating. Suchmetallic coating preferably is formed or placed upon the lenses assuggested by means of electro-deposition, because in this way the saidcoating of metal is deposited slowly and gradually so that it is formedwithout binding action upon the glass of the lens and without subjectingthe same to any stresses or strains. Although, as at present advised,the deposition of the coating of metal upon the surface and edgeportions of the lens or lenses at the point or points desiredelectrolytically is preferred by me, it is to be understood that suchcoating may be formed by otherwise causing a deposition or formation orplacing of the said. coating in position.

The said coating may be relatively quite thin and still be sufficient totake up the stresses and strains which are ordinarily and normallyimposed upon the lenses by the straps by means of which the oppositeends of the bridges and the forward ends of the temple wires ofspectacles are con nected to the said lenses.

Other objects and advantages of my in vention will be pointed out in thedetailed description thereof which follows or will be apparent from suchdescription.

In order that my invention may be more readily understood and itspractical advantages more fully appreciated and comprehended, referenceshould be had tothe accompanying drawing in which I have illus trated aconvenient form of embodiment thereof.

In the said drawing z Figure 1 is a face view of a lens provided with acoating of metal or equivalent material over which the strap may beplaced to be secured to the lens;

Fig. 2 is a transverse sectional view through a portion of the lens andthe said coating;

Fig. 3 is a view similar to that shown in 1, but showing the coatingstrip pro vided with laterally projecting portions which extend for ashort distance upon opposite sides thereof in contact with the edge ofthe lens;

Fig. a is a view in transverse section similar to Fig. 9. but showing a.strap overlying the said coating and a screw for securing the strap tothe lens; and

Fig. 5 is a face view of a lens in which the coating is shown ascovering the portion of the lens over which the strap extends and alsoas covering thepcripheral edge of the same.

In the drawing l designates a lens and .2 a coating of metal which hasbeen deposited by electrodeposition or otherwise placed upon the lens ata point at which a strap is to be applied for the purpose of securing abridge, temple lug or other member or part of an eyeglass mounting tothe lens. 3 designates a metal lining or bushing in the opening t of thelens. The opposite ends of the lining or bushing are provided withflanges l which contact with the opposite surfaces of the lensimmediately surrounding portions of the opposite ends of the bpening 4:.The opposite ends of the coating strip 2 are connected integrally withthe opposite ends of the said'lining or bushing and said strip extendsalong the opposite surfaces of said lens to and across the adjacent edgeof the same as shown. In Fig. 3 the same coating strip 2 and flangedlining or bushing 3 within the opening 4; are shown, and in ad .means ofwhich the strap is secured andheld v in position. It Wlll be'observedthat nelther dition lateral projections 5 extending in oppositedirections from the opposite edges of the strip 2 along the edge of thelens. The purpose of the lateral projections 5 is to serve as a bearingfor the laterally extending shoes which usually project from theopposite edges of a strap. However breaking is not apt to be caused bycontact of such shoes directly with the edge of the lens, consequentlythe lateral projections 5 may be omitted as inFig. 1 and the shoes ofthe straps permitted to contactdirectly with the edge of the lens.

S designates a strap which fits over the coating strip 2, andtdesignates a screw by the strap 8 nor the screw 9 contacts at any pointwith the lens 1. Consequently .no pressure, stresses or strains aretransmitted from the strap 8 or from the screw 9 to the lens. Suchpressure, stresses or strains as may result from the strap 8 or screw 5)are taken up and resisted by the coating 2 and lining or busl'ring 8.The said last two mentioned parts are integral with each other as shown.

The coating and the lining or bushing may be applied to the lens in anymanner described, the only precaution to be observed is that it shallxbeapplied in a manner to avoid the placing or imposing-of a pressure .orpressures upon the lens tosubject the same to stresses or strains. Butforthe presenceof the coating strip 2 and thelining or bushing 3 anystressesor strains which maybe exerted by a strap or a fastening screw,especially if they be constant and continuous upon the lens, are mostlikely to cause a fracture or breaking thereof.

In Fig. 5 a construction is shown in which the coating'of metal isextended along or around the entire peripheral edgc'of, the lens asshown at 10. The presence of such peripheral coating will materially:decrease the breakage due. .to A dropping or otherwise striking thelenses. Such peripheral coating preferably and usually will be employedonly in the case'ofwhat areknown as rim- ;less glasses .but'nray be usedin cases-where the-glasses are provided with rims.

I claim:-

1.-In eyeglasses and spectacles, in combination, a lens provided with anopening adjacent its edge for the. reception of fas toning .ineans, saidopening having a thin .metal lining, a thin. and relatively narrowcoating strip having integral connection with and extending from theoppositeends of said lining along opposite portlonsof the surface ofthesaid' lens .to and across the adjacent edge thereof, substantially asdescribed.

2.i Ineyeglasses and spectacles, a lensprotraded with one or moreopenlngs for the reception of fastening means for securing a strap orstraps to said lens, said opening or openings being provided with ametal lining, and a metal strip having integral connection at itsopposite ends with the opposite ends of said lining, said stripextending along the surfaces of said lens and across the edge of thelens adjacent to the said opening or openings.

3. In eyeglasses and spectacles, a strip of metallic coating extendingtransversely of the edge of a lens and a metallic lining for the openingthrough the said lens through which opening the strap fasteningmeansextends, said lining and strip having connection with each other, thesaid strip and lining constituting a bearing for the-strap and fasteningmeans therefor.

a. In eyeglasses and spectacles, in com bination, a lens having anopening therethrough adjacent the edge thereof, a metal lining for saidopening, the opposite ends of said lining being provided with integralflanges which Contact with portions of the opposite sides of the saidlens immediately surrounding theopposite ends of saidopen- ,ing, a thinmetallic strip having integral connection at its opposite ends to saidflanges, said strip extending across the ad jacent edge of said lens, astrap fitting over and contacting with the said strip, and a fasteningdevice extending through the ends .of said strap and through the saidlining for securing the said strap (in position upon the lens,substantially as described.

5. In eyeglasses and spectacles, in combination, a lens provided with anopening adjacent its edge forthe reception of strap fastening means andhaving a metal lining, a thin and narrow coating strip having -1ntegralconnection with and extending from the opposite ends of said liningalong opposing portions of the surfaces -of.said lens to and across theadjacent edge thereof, and a relatively thin coatingstrip extending enti-rely around the peripheral edge of said lens.

6..In eyeglasses and spectacles, "in com- .bination, a lens ,havinganopening extending therethrough adjacent to the edge there of, a metalliclining in said opening, a rela tively thin coating strip having integralconnection with the opposite ends of said lining and-extending alongportions 'of the opposite surfaces of said lens to andacross theadjacent edge thereof, and 'a-coating strip extending entirelyaroundthe-periphera]. edge of said 3161135 saidperipheral coating striphaving integral connection withrthe first named strip.

In tcstimony that I claim .the foregoing as my invention I, havehereunto setny

